AI · alternatives · 2026
24 alternatives to Spin
A framework for composing serverless apps with WebAssembly
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Spin launched in 2023; newer entries below may have overtaken it.
- 1
Lunatic is an Erlang-inspired runtime for WebAssembly - lunatic-solutions/lunatic
2020 · github.com · its alternatives →
- 2
Distributed WASM runtime. Workloads place themselves over a zero-trust mesh. One static binary. - Sambigeara/pollen
Apr 2026 · github.com · its alternatives →
- 3GP
2021 · go-playground-wasm.vercel.app · its alternatives →
- 4
I've just released an early version off my project I've been working on for a few months now and would love some feedback. https://github.com/fourlexboehm/faasta I was surprised there isn't yet an open/source and standards compliant way to host wasi-http functions in a way that takes advantages of WASM, a multi tenanted application. If you're not familiar with wasi, Compared to something like AWS Lambda, this approach is much more efficient as a single process can serve 1000s of function invocations concurrently and asynchronously, instead requiring an entire VM.…
2025 · github.com · its alternatives →
- 5
- 6SD
Andrew Tork Baker is a founder, engineer, and developer relations leader.
2014 · andrewtorkbaker.com · its alternatives →
- 7
This is the entire Firefox browser rendering to a element. Gecko, all UI components, and the Spidermonkey JS engine are all compiled and running in WebAssembly. Here are a few things you might find interesting: - This is fully end to end encrypted! We use the WISP protocol for TCP-over-websockets. - There is a novel WASM->JS JIT for experimental site speedup - This port cost over 25k in opus/fable tokens for debugging and JIT research This was just a fun experiment to push the boundaries of WebAssembly. For a more usable "browser in browser" experience, we also built…
Jul 2026 · developer.puter.com · its alternatives →
- 8
a lightweight web framework in c. Contribute to ashtonjamesd/lavandula development by creating an account on GitHub.
2025 · github.com · its alternatives →
- 9
Render▲318Hey HN, I'm Anurag, founder and CEO of Render, a cloud for application developers. We've just launched Render Workflows, a way to define durable tasks by decorating plain TypeScript or Python functions and running them on Render without operating queues, worker pools, retry logic, and state management. Code example below [1]. The use cases we have in mind include agent loops, ETL/data pipelines, billing flows, and other long-running jobs. The model is simple: mark an existing function as a Task, deploy the repo as a Workflow, then trigger runs from your application code or via our API.…
2019 · render.com · its alternatives →
- 10
I've open sourced a JavaScript to WASM compiler. It's an experimental tool, but given the semantics I already implemented, I'm fairly certain I am able to eventually cover 100% of JavaScript spec. Any ideas, questions or critique welcomed! If you are interested in WASM, especially with new proposals like WASM GC or exception handling, it might be a good source of seeing these features in action - the project has a few thousand lines of hand written WAT so far.
2024 · github.com · its alternatives →
- 11
Hi HN! I’m Syrus, from the Wasmer team. We just released the new version of WAPM that is an order of magnitude better than the previous one (that we also announced here in HN two years ago! [0]), enabling an incredible experience for using and publishing WebAssembly packages. The tech stack that we are using includes: * Python and Django (for the backend) with Graphene (for the open GraphQL API [1]) and Django Channels with websockets over GraphQL [2] for subscriptions * Next.js [3] with React-Relay [4] and Tailwind.css [5] for the frontend * WebAssembly and Wasmer [6] (for the online shell)…
2022 · wapm.io · its alternatives →
- 12
Hi everyone, I built a runtime to isolate untrusted code using wasm sandboxes. Basically, it protects your host system from problems that untrusted code can cause. We’ve had a great discussion about sandboxing in Python lately that elaborates a bit more on the problem [1]. In TypeScript, wasm integration is even more natural thanks to the close proximity between both ecosystems. The core is built in Rust. On top of that, I use WASI 0.2 via wasmtime and the component model, along with custom SDKs that keep things as idiomatic as possible. For example, in Python we have a simple decorator:…
Feb 2026 · github.com · its alternatives →
- 13
Wasp-lang (Beta)▲226Develop web apps in React & Node.js with no boilerplate
2022 · wasp.sh · its alternatives →
- 14
High-performance serverless functions for Rust & WebAssembly
2020 · secondstate.io · its alternatives →
- 15
Wing Playground▲253Iterate on cloud apps in milliseconds, not minutes
2024 · winglang.io · its alternatives →
- 16
2025 · mackow.ski · its alternatives →
- 17
Earlier this year, we released our open-source game engine [0] built with Rust, WebAssembly, and WebGPU. Today, we’re happy to announce the Ambient platform, which brings web deployment, server hosting, and more to the runtime. With Ambient, you can make a game, deploy it to the browser in one command, share your URL and instantly play with others, no downloads or installs needed. Our WASM use is innovative; it is being used as both a sandboxed runtime for user code, and as a way to run the entire Ambient runtime in the browser. This, paired with our ECS data model, enables a highly modular…
2023 · ambient.run · its alternatives →
- 18
2022 · zaplib.com · its alternatives →
- 19
High performance secure & portable Rust functions in Node.js
2020 · secondstate.io · its alternatives →
- 20OA
A lightweight engine for durable execution / deterministic workflows I built with Rust, wasmtime and the WASM Component Model. Its main use is running reliable, long-running workflows that can automatically resume after failures. Looking for feedback on the approach and potential use cases!
2025 · obeli.sk · its alternatives →
- 21
Spinnaker▲111Open source, multi-cloud management from Netflix
2015 · spinnaker.io · its alternatives →
- 22
An Extensible, Concurrent Web Framework for Rust. Contribute to iron/iron development by creating an account on GitHub.
2014 · github.com · its alternatives →
- 23
Run WebAssembly made for outside the browser, inside the browser.
2022 · runno.dev · its alternatives →
- 24
"Game" is a stretch, but I put together this repo containing a pure Rust app which uses SDL2 and compiles to WASM (and can be run in a browser). Older resources were a bit out of date and a bit too verbose for my purposes, so here's a minimal working example.
2024 · github.com · its alternatives →
Also compare
- Lunatic – Actor System for Rust/WebAssembly alternatives
- Pollen – distributed WASM runtime, no control plane, single binary alternatives
- Go playground powered by WASM that runs in the browser alternatives
- Faasta – A self-hosted Serverless platform for WASM-wasi-HTTP in Rust alternatives
- Lunatic alternatives
- Spin-docker – a lightweight RESTful docker PaaS alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →